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AAT1351

Features: Complete PWM Power Control CircuitryUnder-Voltage Lockout (UVLO) ProtectOpen Drain Output Output Short Circuit Protection Low Dissipation Current1.6mA Dead-Time Control0% to 100% Wide Operating Frequency 10 kHz to 800 kHz VDD Range4.0V to 14.0V PinoutSpecifications Parameter Symbo...

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SeekIC No. : 004261058 Detail

AAT1351: Features: Complete PWM Power Control CircuitryUnder-Voltage Lockout (UVLO) ProtectOpen Drain Output Output Short Circuit Protection Low Dissipation Current1.6mA Dead-Time Control0% to 100% Wide Oper...

AAT1351 Data Sheet

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Part Number:
AAT1351
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



Features:

Complete PWM Power Control Circuitry
Under-Voltage Lockout (UVLO) Protect
Open Drain Output
Output Short Circuit Protection
Low Dissipation Current1.6mA 
Dead-Time Control0% to 100%
Wide Operating Frequency
10 kHz to 800 kHz
VDD Range4.0V to 14.0V



Pinout

Connection Diagram


Specifications

Parameter Symbol Value Units
Supply Voltage VDD 14.0 V
Input Voltage (IE , DTC) VI V DD V
Output Voltage VO V DD+0.3 V
Output Current IO 120 mA
Operating Free-Air Temperature Range T C -20 to +85 °C
Storage Temperature Range T  storage -45 to +125 °C
Power Dissipation P d 500 mw



Description

The AAT1351 provides an integrated two-channel  pulse-width-modulation (PWM) solution for the  power supply of DC-DC system; this device offers  the systems engineer flexibility to tailor-make the  power supply circuitry for specific applications.  Each channel contains its own error amplifier,  PWM comparator, deat-time control (DTC) and output driver. The under-voltage protection,  oscillator, short circuit protection and voltage  reference circuit are the common features for the  two channels.

Both channels of AAT1351 can be used for DC-DC  converter operations including step-up, step-down,  and inverting. Dead-time control can be set to  provide 0% to 100% dead-time through a resistive  divider network. Soft-start can be implemented by  paralleling the DTC resistor with a capacitor. Two  dead-time control inputs are assigned for channel 1  (CH1) and channel 2 (CH2) individually, and dead-  time control inputs can be used to control on / off  operation. 




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